Kebab file names

snippets/auto-link.md

@@ -0,0 +1,41 @@
+---
+title: Automatic text linking
+tags: components,fragment,regexp
+author: chalarangelo
+cover: red-petals
+firstSeen: 2018-12-05T15:04:49+02:00
+lastUpdated: 2020-11-03T20:42:15+02:00
+---
+
+Renders a string as plaintext, with URLs converted to appropriate link elements.
+
+- Use `String.prototype.split()` and `String.prototype.match()` with a regular expression to find URLs in a string.
+- Return matched URLs rendered as `<a>` elements, dealing with missing protocol prefixes if necessary.
+- Render the rest of the string as plaintext.
+
+```jsx
+const AutoLink = ({ text }) => {
+  const delimiter = /((?:https?:\/\/)?(?:(?:[a-z0-9]?(?:[a-z0-9\-]{1,61}[a-z0-9])?\.[^\.|\s])+[a-z\.]*[a-z]+|(?:25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)(?:\.(?:25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)){3})(?::\d{1,5})*[a-z0-9.,_\/~#&=;%+?\-\\(\\)]*)/gi;
+
+  return (
+    <>
+      {text.split(delimiter).map(word => {
+        const match = word.match(delimiter);
+        if (match) {
+          const url = match[0];
+          return (
+            <a href={url.startsWith('http') ? url : `http://${url}`}>{url}</a>
+          );
+        }
+        return word;
+      })}
+    </>
+  );
+};
+```
+
+```jsx
+ReactDOM.createRoot(document.getElementById('root')).render(
+  <AutoLink text="foo bar baz http://example.org bar" />
+);
+```